一种钻井液润滑剂的制备及其性能评价
Preparation and performance evaluation of lubricant for water-based drilling fluid
韩银府 1王正良 1徐鹏2
作者信息
- 1. 长江大学化学与环境工程学院,湖北 荆州 434023
- 2. 长江大学石油工程学院,湖北 荆州 434023
- 折叠
摘要
基于现有钻井液润滑剂吸附、润滑抗磨性能差的问题,本文以多元醇、多元羧酸为原料制备一种强吸附、抗剪切的润滑剂(HR-1),采用极压润滑仪和四球摩擦试验机评价其润滑抗磨性能,并通过扫描电镜&能谱仪对其润滑机理进行探讨.实验发现,润滑剂HR-1显著提高了膨润土基浆的润滑抗磨性能,优于现场应用效果较好的润滑剂BLOE;另外,润滑剂HR-1 使钢球表面的C元素含量升高以及Na、O元素含量降低,这表明,润滑剂HR-1 的加入使润滑剂分子取代了原本吸附在钢球表面的钠基膨润土,且降低了摩擦腐蚀产物(Fe3O4)的形成,起到润滑抗磨作用,达到保护金属的目的.
Abstract
In view of the poor adsorption and anti-wear properties of existing drilling fluid lubricants,a strong adsorption and anti-shear lubricant(HR-1)was prepared with polyols and polycarboxylic acids as raw materials in this paper.The lubrication anti-wear properties were evaluated by extreme pressure lubrication instrument and four-ball friction testing machine,and the lubrication mechanism was explored by scanning electron microscopy and energy spectrum.The results showed that HR-1 significantly improved the lubrication and anti-wear properties of bentonite-based slurry,which was superior to BLOE.In addition,HR-1 increased the content of C element and decreases the content of Na and O elements on the surface of the steel ball,which indicated that the addition of HR-1 made the lubricant molecules replace the sodium bentonite originally adsorbed on the surface of the steel ball,and reduced the formation of friction corrosion products(iron oxide),played a role of lubrication and anti-wear,and achieved the purpose of protecting the metal.
关键词
润滑性能/摩阻系数/钻井效率/润滑剂/钻井液Key words
lubrication performance/friction coefficient/drilling efficiency/lubricant/drilling fluid引用本文复制引用
基金项目
湖北省重点研发计划项目(2023BCB070)
出版年
2024
NETL
NSTL
万方数据